Abstract: On the basis of theries of land consolidation potential, qualitative potential of land consolidation was developed by using the combinated results of agricultural land classification and quantitative potential of land classification, and the theory and methodology related to assessment of qualitative potential of land consolidation were established. Finally, the method was implemented in Song County to estimate the increasing potential of land quality. The increasing potential was calculated for the natural quality and utilization of farmland, respectively. The various zones were identified for possibility of potential increase. The results show that, increasing yield of 71500 t, increasing potential of 1561.8 kg/hm2 could be achieved based on calculation in Song County. In the end, a integrated potential rank zones of farmland consolidation was identified in Song County based on the combination and quantitative and qualitative potentail of land consolidation..